9 [ Scientific, surveying, photographic, cinematographic, optical, measuring, signaling and checking instruments and apparatus, namely, computers and cameras; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, voltage regulators and capacitors; apparatus for recording, transmission and reproduction of sound and images; magnetic recording media, namely, blank magnetic data carriers, calculating machines, data processing equipment, computers, ] software for use [ in database management, use as a spreadsheet, word processing, and ] for robot control in the field of measuring, marking and mowing sport fields and parks; devices for navigation by global tracking (GPS); electronic navigational, tracking and positioning apparatus and instruments, namely, GPS tracking devices; software for satellite navigation systems for use in database management, use as a spreadsheet, word processing and for robot control in the field of measuring, marking and mowing sport fields and parks; software for GPS navigation systems for use in database management, use as a spreadsheet, word processing and for robot control in the field of measuring, marking and mowing sport fields and parks; display screens, namely, flat panel display screens and computer monitors; touch screens; surveying instruments and apparatus, particularly for measuring sports fields and parks